ELFT HÍRADÓ

[Szeminárium koordinátor <sem-admin AT szfki.hu>]

SZFI SeminarPenc KarloHUN-REN Wigner RCP SZFIEmergent Quantum Phases in Mott 
Insulators and BeyondTuesday, 22 April 2025, 10:00, KFKI Campus, Bldg. 1, 2nd 
floor, Conference RoomIn his famous essay “More is Different,” P. W. Anderson 
argued that the interactions among the atoms in a solid give rise to complex 
emergent phenomena that go well beyond the properties of the constituent 
atoms. In this talk, I will present an overview of my research on strongly 
correlated electron systems, focusing on Mott insulators and cold-atom 
realizations of analogous physics. I will show how different degrees of 
freedom—such as spin, orbital, and flavor—become entangled and lead to exotic 
quantum phases like algebraic and chiral spin liquids and quantum spin ice. I 
will discuss in detail the dynamical responses of these systems, including 
the optical and inelastic scattering signatures of magnons, spinons, and 
other fractional excitations, and compare them with experimental findings 
from spin chains, pyrochlore lattices, and other materials. Finally, I will 
highlight the magnetoelectric effect observed in multiferroic compounds and 
its role in optical experiments. This work aims to deepen our understanding 
of quantum materials and advance the broader field of condensed matter 
physics. Minden érdeklődőt szívesen látunk! - Everyone is welcome to 
attend.Attila Nagysem-admin AT szfki.hu